[INFO] cloning repository https://github.com/Ferryistaken/mocPolyWidgetRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ferryistaken/mocPolyWidgetRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFerryistaken%2FmocPolyWidgetRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFerryistaken%2FmocPolyWidgetRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44c403a86a1ad41004e0893ee0aa9bc1690a4ebe
[INFO] testing Ferryistaken/mocPolyWidgetRust against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFerryistaken%2FmocPolyWidgetRust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ferryistaken/mocPolyWidgetRust on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ferryistaken/mocPolyWidgetRust
[INFO] finished tweaking git repo https://github.com/Ferryistaken/mocPolyWidgetRust
[INFO] tweaked toml for git repo https://github.com/Ferryistaken/mocPolyWidgetRust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Ferryistaken/mocPolyWidgetRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20aa1c36159d041a74a1adae0cac66d1fbcf59ab4b4d304372373c0c6d771c7c
[INFO] running `Command { std: "docker" "start" "-a" "20aa1c36159d041a74a1adae0cac66d1fbcf59ab4b4d304372373c0c6d771c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20aa1c36159d041a74a1adae0cac66d1fbcf59ab4b4d304372373c0c6d771c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20aa1c36159d041a74a1adae0cac66d1fbcf59ab4b4d304372373c0c6d771c7c", kill_on_drop: false }`
[INFO] [stdout] 20aa1c36159d041a74a1adae0cac66d1fbcf59ab4b4d304372373c0c6d771c7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc2c0c8d3bfedf7e2165bcd42cf01db4e81dea4afa2d5ed6c770a4e7b18c50d3
[INFO] running `Command { std: "docker" "start" "-a" "fc2c0c8d3bfedf7e2165bcd42cf01db4e81dea4afa2d5ed6c770a4e7b18c50d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mocPolyWidget v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut lines: Vec<&str> = output.split("||").collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "fc2c0c8d3bfedf7e2165bcd42cf01db4e81dea4afa2d5ed6c770a4e7b18c50d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc2c0c8d3bfedf7e2165bcd42cf01db4e81dea4afa2d5ed6c770a4e7b18c50d3", kill_on_drop: false }`
[INFO] [stdout] fc2c0c8d3bfedf7e2165bcd42cf01db4e81dea4afa2d5ed6c770a4e7b18c50d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0676e6b59879428bb372b300a5d31845796b76dfda9336b03df25c5689635d8f
[INFO] running `Command { std: "docker" "start" "-a" "0676e6b59879428bb372b300a5d31845796b76dfda9336b03df25c5689635d8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mocPolyWidget v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut lines: Vec<&str> = output.split("||").collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "0676e6b59879428bb372b300a5d31845796b76dfda9336b03df25c5689635d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0676e6b59879428bb372b300a5d31845796b76dfda9336b03df25c5689635d8f", kill_on_drop: false }`
[INFO] [stdout] 0676e6b59879428bb372b300a5d31845796b76dfda9336b03df25c5689635d8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 493479283c985de719815985b8daa1da116d56dcf10c8f566b4907a5b8e67ee7
[INFO] running `Command { std: "docker" "start" "-a" "493479283c985de719815985b8daa1da116d56dcf10c8f566b4907a5b8e67ee7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 62 |     let mut lines: Vec<&str> = output.split("||").collect();
[INFO] [stdout] 
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mocPolyWidget-ab772a169e9a1179)
[INFO] running `Command { std: "docker" "inspect" "493479283c985de719815985b8daa1da116d56dcf10c8f566b4907a5b8e67ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493479283c985de719815985b8daa1da116d56dcf10c8f566b4907a5b8e67ee7", kill_on_drop: false }`
[INFO] [stdout] 493479283c985de719815985b8daa1da116d56dcf10c8f566b4907a5b8e67ee7